50 lines
1.3 KiB
Rust
50 lines
1.3 KiB
Rust
use std::ffi::OsStr;
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use std::fs;
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use std::path::{Path, PathBuf};
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use walkdir::WalkDir;
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// The maximum length allowed for stderr files.
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//
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// We limit this because small files are easier to deal with than bigger files.
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const LENGTH_LIMIT: usize = 200;
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pub fn check() {
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let exceeding_files: Vec<_> = exceeding_stderr_files();
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if !exceeding_files.is_empty() {
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eprintln!("Error: stderr files exceeding limit of {} lines:", LENGTH_LIMIT);
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for path in exceeding_files {
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println!("{}", path.display());
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}
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std::process::exit(1);
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}
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}
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fn exceeding_stderr_files() -> Vec<PathBuf> {
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// We use `WalkDir` instead of `fs::read_dir` here in order to recurse into subdirectories.
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WalkDir::new("../tests/ui")
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.into_iter()
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.filter_map(Result::ok)
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.filter_map(|e| {
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let p = e.into_path();
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if p.extension() == Some(OsStr::new("stderr")) && count_linenumbers(&p) > LENGTH_LIMIT {
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Some(p)
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} else {
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None
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}
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})
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.collect()
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}
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#[must_use]
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fn count_linenumbers(filepath: &Path) -> usize {
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match fs::read(filepath) {
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Ok(content) => bytecount::count(&content, b'\n'),
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Err(e) => {
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eprintln!("Failed to read file: {}", e);
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0
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},
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}
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}
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